CN201051684Y

CN201051684Y - Terminal cover for sectioned stator

Info

Publication number: CN201051684Y
Application number: CNU2005900000557U
Authority: CN
Inventors: 王伟荣; J·S·罗斯; P·G·迈克尔斯; M·E·卡里尔; J·J·尤尔科沃斯基
Original assignee: Emerson Electric Co
Current assignee: Emerson Electric Co
Priority date: 2004-03-23
Filing date: 2005-03-18
Publication date: 2008-04-23
Anticipated expiration: 2015-03-18
Also published as: US20050212377A1; US7414347B2; US7586231B2; US20080296996A1; WO2005101611A2; JP2011120473A; US20060028092A1; JP5542723B2; WO2005101611A3; MXPA06010829A; JP4801659B2; US7382075B2; JP2007531484A

Abstract

A stator of an electromagnetic machine comprises a plurality of discontinuous stator fragments which are coiled independently. The stator fragments are provided with end caps which are located on the upper portions of the stator fragments, and the end caps are provided with struts which are used to position the end caps on the fragments in way of interference fit. The end caps have angled surfaces which are convenient for the coiling of a directing line on the fragments. The end caps are provided with mutually engaging male and female couplings in order to couple the two adjacent fragments, and are further provided with finger-shaped pieces and grooves which are used to basically align the fragments on the same flat face. The end cap is provided with a directing line spacer assembly which comprises a hook, a frame and flanges and is used to separate inter-linkage directing lines which are arranged on the stator and are used for electrically connecting the fragments. Fan-shaped contours for discharging oil are arranged on the exterior margins of the fragments, and the end caps are provided with channels for discharging oil.

Description

The end cap that is used for sectionalized stator

The cross reference of related application

The application and express mail are numbered EV 317623705 US, the agent is numbered U.S.'s application for a patent for invention of 10800.0048.NPUS00 and " End Cap for Interconnecting Winding Coils ofSegmented Stator to Reduce Phase-on-Phase Conditions and AssociatedMethods " by name, express mail is numbered EV 317623609 US, agent's reference number of a document is U.S.'s design patent application of 10800.0051.NPUS00 and " Lead End Cap for SegmentedStator " by name, express mail is numbered EV 317623714 US, agent's reference number of a document is that U.S.'s design patent application and the express mail of 10800.0050.NPUS00 and " Base End Cap for SegmentedStator " by name is numbered EV 317623688 US, agent's reference number of a document is that U.S.'s design patent application of 10800.0047.NPUS00 and " Contoured Stator " by name is submitted to simultaneously, and above-mentioned application discloses relevant theme.

Technical field

Theme of the present disclosure relates to the stator module that is used for electromagnetic machine.Particularly, theme of the present disclosure is relevant with " loose " segmented stator assemblies, this stator module has stator slice and end cap discontinuous, independent coiling.In an example, " loose " of the present disclosure segmented stator assemblies can be used among the enclosed motor of compressor in the refrigerating system.

Background technology

In the prior art, the sectionalized stator of---for example the hermetic compressor motor of refrigerating system---is known to be used for electromagnetic machine.Segmented stator assemblies typically comprises a plurality of fragments that form motor stator.Stator typically is accommodated among the housing, and rotor and axle are placed so that rotate in the inner chamber of stator.Each fragment of stator comprises yoke portion and tooth portion.---for example inductor motor, brush-less permanent magnetic (BPM) motor and switching magnetic-resistance (SR) motor etc.---is well known in the prior art as electromagnetic machine, with magnetic wire stator teeth is wound the line, have heterogeneous winding coil so that form.

End cap is assemblied on the end of stator slice, so that help conductor arrangement on fragment.For example, authorize the U.S. Patent No. 6 of people such as Peachee, " Washing machine including a segmented statorswitched reluctance motor " by name, 584,813 disclose a kind of segmented stator assemblies that adopts end cap on fragment, and integral body is incorporated into herein as a reference.In addition, authorize the U.S. Patent No. 2 of Sheldon, 688,103, authorize the U.S. Patent No. 2,894,157 of Morrill, the U.S. Patent No. 6 of authorizing Yamazaki, 127,753, the U.S. Patent application No.2002/0084716 that authorizes people such as people's such as Nashiyama U.S. Patent No. 6,509,665 and Harter discloses the different instances of the end cap that is used for stator.End cap of the prior art typically is bonded on the fragment, and at coiling winding coil around each fragment tooth portion and on the part of end cap.Therefore, any problem of end cap may produce bad winding characteristic at winding coil, and for example, the density of winding coil is not enough around the overlapping or tooth portion of undesirable winding coil.

Sectionalized stator needs different manufacturing steps that the coil of all independent coilings on fragment is interconnected to form phase winding.For the winding coil to stator interconnects, known in the prior art and adopted printed circuit board (PCB) that the different winding coils of stator are interconnected.Printed circuit board (PCB) is generally annular, and has a plurality of terminal pads, and terminal pad is connected to the terminal pin on each end cap of stator.

Can adopt interconnecting lead rather than printed circuit board (PCB) that the different winding coils of opposite electric phase (opposing electricalphases) (voltage) are connected.The end of interconnecting lead can be fused or be welded on the terminal pin that stator terminal covers, and is disclosed like that as the U.S. Patent No. 2,688,103 of authorizing Sheldon.Can adopt several diverse ways that the path of interconnecting lead is set.The path of interconnecting lead can be set around the fragment Outboard Sections in an example.In the prior art, it is known being provided for the hook of thread guide path is set so that the path of interconnecting lead is set on the Outboard Sections at stator in the stator outside.Yet, in compressor electric motor, do not wish on the Outboard Sections of stator, thread guide path to be set.

The path of interconnecting lead can be set at the inside part of stator in another example.In the prior art, it is known adopting stitch ring (stitcher ring) to come lead wire so that the interconnecting lead path is set on the stator inside part.For example, Emerson Electric Co manufacturing, dash number is that 280138 stitch ring is used in the path that interconnecting lead is set in the motor.This stitch ring is the dish with the central opening that is used to pass armature spindle.The stitch loop mapping is at the front end of stator, and partly is assemblied in the bore of stator top.Side at the stitch ring provides a plurality of hooks, and these hooks are used for being provided with thread guide path between winding coil.In another example, the U.S. Patent No. 5,900,687 of authorizing people such as Kondo discloses a kind of end plate with groove, and it is used for arranging lead between out of phase coil.This end plate is fixed on the top of stator winding coil in the cavity region.

Because the interconnecting lead of institute's cloth is settled adjacent to each other on stator, the big voltage difference between the adjacent interconnection lead can produce the alternate situation (phase-on-phase condition) in the motor, and may cause the premature failure of wire insulation.In compressor electric motor, any big voltage difference may be exaggerated between the adjacent wires, this be because this motor be used as magnetizing clamp, wherein, in given moment, 1600 volts, 1200 the peace more than will be through stator.In addition, compressor electric motor can use with pulse-width modulation (PWM) driver.Waveform from pwm driver may and afterwards have the high voltage spike on the edge in the forward position of waveform, produces the needs that phase conductor is separated.Traditionally, motor adopts between the magnetic wire that forms independent winding coil Or The insulation of making.In the prior art, it also is known adopting supplementary insulation between the interconnecting lead that winding coil is interconnected.It's a pity that this supplementary insulation has increased the manufacturing cost and the production time of motor.

Some segmented stator assemblies adopts interlock or the hinge on the fragment to hold them in together.For example, the U.S. Patent No. 6,127,753 of authorizing people such as Yamazaki discloses the fragment with hinged end, and hinged end links together adjacent segment.Different with the sectionalized stator with interlocking fragment, some stator slice of the prior art is not the direct interlocking of other fragments that is shaped as with stator.On the contrary, this fragment has has the ridge end and the groove end is arranged.These ends only are combined together on adjacent segment, therefore, are not having under the situation of some other fixed structure, and these fragments are not held togather physically.Therefore, these stator slice are used to form the stator of " loose " Segment type." loose " sectionalized stator typically needs retention device---for example thick and heavy metal tape of assisting, so that when making fragment form stator annular fragment is kept together.When making motor maybe when transporting to consumer as separate component stator, this thick and heavy band be positioned in the fragment external diameter around so that hold them in together.In addition, traditional sectionalized stator does not provide fragment is axially aligned to prevent the ready-made method of the unacceptable difference on the tolerance in the manufacture process.Current, there is not the mode that axially aligns that is used for " loose " sectionalized stator in the prior art.

As mentioned above, sectionalized stator can be used in the enclosed motor of the compressor in the refrigerating system.Compressor has oil pump in the bottom of compressor, and it is called as oil storage tank.Typically, the axle by enclosed motor carries out pumping to oil, process stator and rotor, the base bearing of arrival compressor.Oil is released to the front end of motor from this bearing, so that be expelled back into oil storage tank.The profile of motor---for example the profile of sectionalized stator---can determine to allow oil to turn back to the oil storage tank from the motor front end in which way.In addition, also can be from the oil of enclosed motor oil storage tank in the cavity and the recess alluvial of typical end cap, this may turn back in the oil storage tank by overslaugh oil.For example, if motor does not possess enough oil extraction areas, oil will be retained at the front end of motor.Retaining of oil can produce higher oil circulation in refrigerating system, may make the deficient oil of oil pump, and the performance that may hinder compressor.On the other hand, if motor has too big oil extraction area to be used for returning of oil, stator may have less back iron with desirable comparing.Stator with less back iron may have the performance that higher magnetic flux is saturated and reduce.

The typical stator that is used for the enclosed motor of compressor has the area of plane that defines with stator outer diameter.The area of plane of stator provides the oil extraction area of oil from the motor front end to the oil storage tank process.In some stator, do the area of plane very big, make that the material that is used to form stator can be used efficiently.Yet the large scale of these areas of plane may make the housing distortion of motor in the stator.For example, the stacked process of carrying out that forms the stator with area of plane may produce the problem of housing distortion.In addition, the scroll shear pattern is when being used for compressor, because the physical size of the stator outside area of plane may produce the housing distortion problem.Therefore, typically the area of plane size in stator and being used to make make between effective use of material of stator compromise.

Theme of the present disclosure is directed to be overcome or is to reduce above-mentioned one or more problem at least.

The utility model content

The stator that is used for electromagnetic machine comprises the stator slice of a plurality of discontinuous, independent coilings, and stator slice has the end cap on the fragment of being placed in.In an example, end cap has and is used for end cap is placed in pillar on the fragment with interference engagement.In another example, end cap has angled surface, so that help on fragment around the volume lead.In another example, end cap has the male and female coupling that cooperatively interacts, so that adjacent segment is coupled.In another example, end cap has and is used for fragment is aligned in finger piece and groove on the same substantially plane.In further example, end cap has the lead spacer assembly that comprises hook, frame and flange, be used for interconnecting lead is isolated, this interconnecting lead by cloth on stator so that fragment is carried out electric interconnection.In another example, fragment has the scalloped profile that is used for oil extraction on its outer rim, and end cap has the passage that is used for oil extraction.

Above-mentioned general introduction is not for various possible embodiment or every kind of example of the present disclosure are summarized.

Description of drawings

In conjunction with the accompanying drawings, below reading,, other examples of aforementioned general introduction, preferred embodiment and the theme of disclosure theme will be understood best to the detailed introduction of specific embodiment.In the accompanying drawings:

Fig. 1 show be placed in the housing, according to the plane graph of some professor's of the present disclosure segmented stator assemblies embodiment;

Fig. 2 A to 2B shows the top perspective view and the end perspective view of disclosed segmented stator assemblies;

Fig. 3 A to 3B shows the plane graph and the perspective view of the stacked fragment of disclosed segmented stator assemblies;

Fig. 4 shows the detailed plan view of disclosed segmented stator assemblies part;

Fig. 5 A to 5D shows the various views of the embodiment of the front end housing on the fragment of disclosed stator module;

Fig. 6 A to 6F shows the various isolated view of the front end housing of disclosed stator module;

Fig. 7 A to 7C shows the alternate embodiment that the end with adjacent headend lid is coupled;

Fig. 8 A to 8B shows another alternate embodiment that the end with adjacent headend lid is coupled;

Fig. 9 A to 9C shows the various views of the embodiment of the bottom cover on the fragment of disclosed stator module;

Figure 10 A to 10F shows the various isolated view of the bottom cover of disclosed stator module;

Figure 11 shows front end housing on the adjacent segment with different stacks as high, disclosed and bottom cover;

Figure 12 A to 12D shows the illustrative suture way of the interconnecting lead that is used on the disclosed stator module;

Show to Figure 13 principle the flux density path on the example of disclosed stator module;

Figure 14 shows the plane graph of disclosed fragment with respect to the housing circumference.

Disclosed end cap, fragment, stator and correlation technique allow various changes and alternative, illustrate and describe in detail its specific embodiment in the accompanying drawings by way of example here.Figure and written description are not in order to limit the scope of this inventive concept by any way.On the contrary, providing figure and written description is for according to the requirement of 35 U.S.C. § 112, to those skilled in the art this inventive concept is described with reference to specific embodiment.

Embodiment

A. stator module

With reference to Fig. 1 and Fig. 2 A to 2B, show embodiment according to some professor's of the disclosure segmented stator assemblies 10.Fig. 1 shows the plane graph of disclosed stator module from front end, and Fig. 2 A and 2B show the perspective view of disclosed stator module 10 from front end and bottom respectively.Disclosed stator module 10 belongs to " loose " sectionalized stator type.Disclosed stator module 10 can be used among the varying speed motor application scenario, for example the hermetic compressor of vehicle or dwelling house refrigerating system.Yet some professor of the present disclosure can be used for the stator of other types and other motor applications occasion.

Segmented stator assemblies 10 comprises a plurality of discontinuous stator slice 20.Fragment 20 has front end housing 50 and bottom cover 150.In this example, segmented stator assemblies 10 has nine fragments 20, with lead these fragments is carried out independently around volume, forms winding coil 92, can expect having the fragment of varying number and the alternate embodiment of end cap, and these embodiment also is feasible.Segmented stator assemblies 10 typically is accommodated in the motor field frame (not shown), settles rotor and axle (not shown) so that rotation in the inner chamber 11 of stator 10.

B. fragment

With reference to Fig. 3 A-3B, in plane graph and perspective view, show the stacked fragment 20 that is used for disclosed stator module 10 respectively.The structure of each fragment 20 is similar with the fragment structure that is used for the conventional segmented stator usually.For example, each fragment 20 is made up of a plurality of roughly the same thin slices 21.Thin slice 21 is made and is stacked on by stainless steel together to form fragment 20.

Each fragment 20 comprises yoke portion 22 and tooth portion 24.Yoke portion 22 has outer side edges 30, and it defines rear channels 38.Rear channels 38 is held the part of

end cap

50 and 150 with press fit relation,

assists end cap

50 and 150 is coupled to stator slice 20, and it will be described in detail below.In the present embodiment, each fragment 20 comprises ridge end 34 being arranged and groove end 32 is arranged defined in the yoke portion 22.When fragment 20 formed the annular shape of stators 10, groove end 32 being arranged and have ridge end 34 to cooperate each other of adjacent segment 20 was as illustrating best among Fig. 1 and Fig. 2 A-2B.Especially, when making adjacent stators fragment 20 together, there is groove end 32 to accommodate ridge end 34.Abutting

end

32 and 34 is forbidden relatively moving of adjacent stators fragment 20 at least one direction.The stator module of---this interlocking hinge or splice play the effect that directly adjacent stator segment is linked together---is different with having interlocking hinge or splice (puzzle pieces) in the prior art, lacking under the situation of some other fixed structure groove end 32 being arranged and have ridge end 34 physically adjacent stators fragment 20 not to be kept together in the present embodiment.Therefore, the stator slice in the present embodiment 20 forms the stator of " loose " Segment type.

In the present embodiment, the tooth portion 24 of fragment 20 has magnetic pole 26, it typically is "T"-shaped.The medial surface of magnetic pole 26 (be magnetic pole 26, away from yoke portion 22 towards the surface) form the inner chamber of institute's assembling stator, in this inner chamber, settle rotor so that rotation.As known in the art, the lead (not shown) around the tooth portion 24 of stator slice 20 around volume, to form winding coil.The lateral surface of magnetic pole 26 (be magnetic pole 26, towards the surface of yoke portion 22) helps desirable position in the tooth portion 24 is settled and remained on to winding coil at least in part, as following detailed introduction.

C. front end housing

As mentioned above, shown in Fig. 1 and 2A-2B, each in the discontinuous stator slice 20 in the sectionalized stator 10 that is assembled has front end housing 50 and bottom cover 150.With reference to Fig. 5 A-5D, the discontinuous stator slice 20 with

end cap

50 and 150 has been shown, in several isolated view so that be the correlative detail that disclosed stator module discloses front end housing 50.Front end housing 50 is used on the front end of stator slice 20 (being that stator slice 20 is positioned as towards an end of base bearing or motor " top ").Front end housing 50 is made up of electrically non-conductive material, is preferably by Dupont's

FR530 forms.

Front end housing 50---it is also shown in various isolated view of Fig. 6 A-6F---comprises main part 60, winding portion 74 and madial wall 76.Front end housing 50 is assemblied on the stator slice 20, makes the surface 52 of substantially flat of end cap 50 be positioned near the front end of fragment 20.Especially, main part 60 is positioned in the yoke portion 22 of fragment 20, and winding portion 74 is located in the tooth portion 24 of fragment 20, and madial wall 76 is positioned on the magnetic pole 26 of fragment 20.As the end view among Fig. 6 D and the 6F illustrates best, the main part 60 of front end housing 50 and madial wall 76 extend considerably beyond winding portion 74, and form strip-wound pressure vessel (winding pocket) 70, and main part 60 and madial wall 76 have the essentially identical height of the tooth of exceeding portion.As Fig. 5 A-5D principle illustrate, the lead of winding coil 92 in strip-wound pressure vessel 70 around twisting in around the tooth portion 24, make part winding coil 92 be positioned partially between main part 60 and the madial wall 76, and be positioned partially on the winding portion 74 of end cap 50.

As illustrating best among Fig. 6 A, the winding portion 74 of front end housing 50 defines a plurality of ribs, and these ribs are necessary for being molded into of end cap 50 to a certain extent.Be preferably: winding portion 74 limits five ribs, so that provide enough intensity for end cap 50.These ribs can---be planned in this strip-wound pressure vessel around the volume lead---middle formation at strip-wound pressure vessel 70, as shown in Figure 6A.In alternate embodiment, bottom surface 52 (shown in Fig. 6 B) can be used as and alternatively limit described a plurality of rib.On bottom surface 52, form rib reinforce end cap 50 aspect be favourable, this is because will be oppressed when being positioned as when pasting segment surfaces these ribs.In addition, on the upper surface of winding portion 74, winding portion 74 may be a high stress point with being connected of madial wall 76.By form rib on the bottom surface 52 of winding portion 74, winding portion 74 will be that this can reduce the possibility of the breakage between winding portion 74 and the madial wall 76 uniformly to potential " heavily stressed " connection of madial wall 76.

1. fixture

As illustrating best among Fig. 5 A-5D, a plurality of pillars of front end housing 50 usefulness are positioned on the stator slice 20.In the present embodiment, front end housing 50 comprises two tooth pillars 82 and a main body pillar 88.Tooth pillar 82 is attached to madial wall 76, and main body pillar 88 is attached to the limit of main part 60, and

pillar

82 and 88 flat surfaces 52 extensions from end cap 50, so that be assemblied on the fragment 20.When end cap 50 was positioned on the fragment 20, tooth pillar 82 was engaged in the either side of tooth portion 24, and main body pillar 88 is engaged in the passage 38, and wherein, passage 38 forms on fragment 20 outer side edges 30.The limit of tooth pillar 82 is engaged in the either side of tooth portion 24 in interference engagement (interference fit) mode, and the outer surface of tooth pillar 82 is orientated the medial surface that is pasting magnetic pole 26 as.

Three

pillars

82 and 88 remain on end cap 50 on the fragment 20 substantially, and fully aim at end cap 50 on fragment 20.End cap 50 is stabilized in situation on the fragment 20 substantially by

pillar

82 and 88 under, prevented that end cap 50 from moving at winding process or during other manufacturing steps.For example,

pillar

82 and 88 reduces to minimum with any axially and tangentially moving of end cap 50, and has eliminated the demand that end cap 50 is adhered to fragment 20.By convention, end cap well known in the prior art is bonded on the fragment, moves by side to opposite side or moves on among the inner chamber in case not-go-end covers in manufacture process from one.Yet, in disclosed end cap 50, not needing under the bonding situation, tooth pillar 82 and main body pillar remain on end cap 50 appropriate location on the fragment 20 basically.

2. sunk area (undercut areas)

Because the

pillar

82 and 88 of front end housing 50 has the limit that forms interference engagement with fragment 20, when being positioned at end cap 50 on the fragment 20, the limit process of stator slice 20 is being pasted on these limits.Therefore, when being placed in end cap 50 on the fragment 20, the limit of fragment 20 may be wiped the material of

plastic support

82 and 88 off, and may force the material of wiping off pasting the flat surfaces 52 of end cap 50.The front end strictness that any material of wiping off of being assembled may hinder end cap 50 pasting fragment 20 between surface 52 and the fragment 20 flatly cooperates.Therefore, as the bottom view among Fig. 6 B illustrated best, disclosed end cap 50 adjacent teeth pillar 82 on surface 52 defined recess channel 54 with the place that is close to main body pillar 88.All make the flat surfaces 52 of end cap 50 can closely paste the front end cooperation of fragment from the material that pillar 88 and 88 is wiped off when end cap 50 is mounted on the fragment in these recess channels 54 collections.

Shown in the bottom view of Fig. 6 B, the flat surfaces 52 of front end housing 50 defines sheeter lines (divot) 57, so that hold interlocking protuberance (interlock tab) (element 37 shown in Fig. 3 A), the interlocking protuberance is used for piling up of fragment thin slice traditionally.In addition, the outer side edges of main part 60 defines passage 67, and it holds on the fragment other interlocking protuberance (element 37 shown in Fig. 3 A).As illustrating best among Fig. 6 B, the passage 67 on the front end housing 50 makes passage 67 also play the effect of outage, as following detailed introduction with the hole 61 of the outer side edges connection main part 60 of end cap 50.

3. container characteristics

In the present embodiment, and as the detailed view among Fig. 4 illustrated best, front end housing 50 was preferably separately and comprises first and second container 68+ and the 68-that is used for insulation displacement connector (IDC) (not shown).IDC container 68+ and 68-each self-contained inboard seam 69-I and external latasuture 69-O.The leading portion 93L that is used to form the lead of winding coil 92 is assemblied among the IDC container 68+, and the tail end 93T of the lead 90 of winding coil 92 is assemblied among another IDC container 68-.In the illustrative interconnect scheme that is described in detail below, be used for phase interconnecting lead 94A that the winding coil to the fragment 20 of same phase interconnects and also be assemblied in an IDC container 68+ on the end cap 50.In this illustrative interconnect scheme, be used for neutrality or common interconnect lead 96 that the common port to the winding coil 92 of stator interconnects and be assemblied in another IDC container 68-.Therefore, seam 69-I, 69-O makes lead 90,94,96 pass through between the medial surface of stator module 10 and lateral surface by IDC container 68+, 68-.

External latasuture 69-O is with the relation lateral surface of stator module 10 that positions the wire of regulation, and navigates to any shell (not shown) of settling stator module 10 therein.As the top view among Fig. 6 A illustrated best, distance pole (post) 148 extended from the main part 60 of adjacent lateral side seam 69-O.In winding process, use these distance poles 148, and in assembling process subsequently, finally remove them.

Interior latasuture 69-I to IDC container 68+, 68-positions especially, can be positioned with the prescribed relationship to the tooth portion 24 of fragment 20 so that guarantee to form the lead 90 of winding coil 92.As Fig. 6 A illustrated especially and best, the interior latasuture 69-I of IDC container 68+ was registered to the limit with the winding portion (not shown) of the tooth portion 24 adjacent assemblings of fragment 20 substantially.Be preferably limit formation groove 65 on the main part 60 of end cap 50 from seam 69-O to winding portion 74.As Fig. 4 illustrated best, groove 65 was used for the leading portion 93L of winding coil 82 is guided and is hidden into the tooth portion of fragment.On the other hand, as Fig. 6 A illustrated best, the interior latasuture 69-I of other IDC containers 68-was positioned as with the distance on the limit of winding portion 74 far away.As illustrating best among Fig. 4, the interior latasuture 69-I of other IDC containers 68-holds the rear 93T of winding coil 92.

Except seam 69-I, 69-O, as illustrating best among Fig. 4, front end housing 50 comprises connection benchmark wall 140 at the medial surface of main part 60.Connect benchmark wall 140 and be positioned as, and in manufacture process, when positioning the wire on stator 10, be used for lead is aimed at seam 69-I, 69-O away from IDC container 68+, 68-.The limit 142 of wall 140 is aimed at substantially with interior latasuture 69-I, and is used for making the lead bending with respect to interior latasuture 69-I.Connect tip or part 144 that benchmark wall 140 stretches out main part 60 in addition.Most advanced and sophisticated 144 produce datum mark, and this datum mark is used for aiming at lead at seam 69-I, the 69-O of IDC container 68+, 68-.For example, main part 60 is stretched out enough far in the tip 144 of wall 140, so that allowed coiling pin (windingprobe) or bobbin (winding nozzle) to make the lead bending before lead is introduced into seam 69-I and 69-O on IDC container 68+, 68-.The demand to the hook that stretches out main part 60 has been eliminated in the existence of stretching out tip 144 of wall 140, and hook may cause interference to the automation wire winding.

As illustrating best among Fig. 4, also has alignment slot 146 near front end housing 50 each in IDC container 68+ and 68-.By providing datum mark for aiming at automation equipment---this device embeds the IDC (not shown) in IDC container 68+ and 68----, alignment slot 146 helps the automation assembling of stator 10.For example, present embodiment preferably adopts the insulation displacement connector (IDC) that Tyco makes.IDC is assemblied among container 68+, the 68-.Be preferably: IDC container 68+ and 68-have distance pole upwards in container, so that help the location of IDC.In case after installing, IDC is electrically connected through the interconnecting lead (for example 94A and 96) of container 68+ and 68-and winding coil lead (for example 92).In addition, IDC provides the terminals that are used to go between, so that be connected to motor.End cap 50 also comprises installing hole 66, and wherein, but snapping (snap) is used for the cable binding (cable tie) of clamping lead-in wire.

D. bottom cover

As mentioned above, the discontinuous fragment 20 of stator 10 has bottom cover 150.With reference to Fig. 9 A to 9C, show stator slice 20 with a plurality of isolated view, so that be the correlative detail that disclosed stator module discloses bottom cover 150 with end cap 50 and 150.Bottom cover 150 is used in the bottom (being that stator slice is orientated as towards an end of oil storage tank or motor " bottom ") of stator slice 20.Bottom cover 150 is similar to front end housing discussed above substantially.For example, bottom cover 150, and---it is shown in a plurality of isolated view of Figure 10 A to 10F---comprise the surface 152 of main part 160, winding portion 174, madial wall 176 and substantially flat.

With with front end on the similar fit of front end housing, bottom cover 150 is assemblied on the bottom of stator slice 20.For example, bottom cover 150 has two tooth pillars 182, and tooth pillar 182 is attached to madial wall 176 and extends from flat surfaces 152.Disclosed end cap 150 also has main body pillar 188, and main body pillar 188 is attached to

main part

160, and 152 extensions from the bottom surface.In the time of on being placed in fragment 20, the tooth pillar 182 of bottom cover 150 is pasting magnetic pole 26 with interference engagement and is cooperating the side assembling of tooth portion, and main body pillar 188 is engaged among the passage 38 that forms on the outer side edges 30 of fragment 20.

Pillar

182 and 188 is firmly held in bottom cover 150 on the fragment 20, therefore, in coiling process or other manufacturing steps, does not allow end cap 150 to move.

Similar with front end housing discussed above, as the top view among Figure 10 A illustrates best, bottom cover 150 adjacent struts 182 and place of 188 on flat surfaces 152 comprise recess channel 154, and it is used to collect the material that scrapes from

pillar

182 and 188 when bottom cover 150 is arranged on the fragment.In addition, the flat surfaces 152 of bottom cover 150 defines sheeter lines 157, and the limit of main part 60 defines recess 167, and recess 167 is used for holding interlocking protuberance (element 37 of Fig. 3 A), and the interlocking protuberance is used for piling up of fragment thin slice traditionally.

E. step winds the line

In the assembling process of disclosed stator 10, for example, in the known technology of prior art, form fragment 20, shown in Fig. 3 A and 3B by a plurality of thin slices that pile up.So front end housing and

bottom cover

50 and 150 are positioned on the discontinuous fragment 20.Then, as be known in the art such, will Or the rectangular (not shown) of other this materials is attached to the side of the tooth portion 24 of fragment 20.Rectangular typically have an adhesive backing that is used to adhere to, and provide protection and insulation for the lead that remains in the tooth portion 24.Then, form winding coil 92 on fragment 20, it illustrates reasoningly at for example Fig. 5 C and 5D Central Plains.Form winding coil 92 by for example winding high above (fly winding) or pin around technology well known in the prior art such as (needlewinding).Be preferably, present embodiment adopts the winding technology with main shaft (spindle) and bobbin (bobbin), wherein, and at each discontinuous stator slice 20 coiling winding coil 92 independently on every side.

In the present embodiment, a benefit of " loose " sectionalized stator is freely to handle discontinuous stator slice 20, and can be rotated independently discontinuous stator slice 20, so that carry out coiling, form winding coil with lead.Therefore, the utilization of the slot area (slot area) of discontinuous stator slice 20 is strengthened the precision of coiling process, and provide closeer slot to fill (slot fills).In addition, the utilization to discontinuous fragment 20 allows fragment 20 with coiling at a high speed.

In brief, main shaft/bobbin coiling technology starts from fragment 20---it has the insulation of adhering to rectangular and

end cap

50 and 150---, and be placed on the lathe (arbor machine), this lathe is caught the

end

32 and 34 of fragment 20.The leading portion of lead is in distance pole 148 bent around of protruding, so that on the fixed position on end cap 50 of positioning the wire, wherein, distance pole 148 is on the outside of front end housing 50.Then, make lead insert the seam 69 of IDC container 68+.Lathe rotation fragment 20, movably conduit is to fragment 20 feed conductor.In fragment 20 rotation, lead around the winding portion 74 of the tooth portion 24 of fragment 20 and

end cap

50 and 150 and 174, formation winding coil 92.

After coil 92 was finished, then, the seam 69 of the neutral IDC container 68-on the lead process front end housing 50 then, was repaired lead at this place towards the outside deflection of end cap 50.Be preferably: make the lead bending with certain angle from external latasuture 69-O, break away from container 68-so that prevent to repair the back lead.As is known to the person skilled in the art, with tooth portion 24 coilings of given direction, when this winding during by excitation, obtains the electromagnet with polarity on this assigned direction around fragment 20.On the different fragments 20 of stator, repeat so a kind of coiling process independently.

As Fig. 5 C and 5D institute principle illustrate, the lead of winding coil 92 is carried out around volume, make the part of winding coil 92 also be positioned partially at

end cap

50 and 150

madial wall

76 and 176 and main part 60s and 160 between.In addition, the lead of winding coil 92 is carried out around volume, make the part of coil 92 be positioned partially between the yoke portion 22 and

pillar

82 and 182 of fragment 20.

Relative pillar

82 and 182 end are preferably each other and join substantially on front end housing and

rear end cap

50 and 150, so that the metal of magnetic pole 26 is significantly come out, as illustrating best among Fig. 5 C and the 5D.Therefore,

pillar

82 and 182 has significantly increased and has formed insulation between the metal of magnetic pole 26 of fragment 20 for winding coil.

For in the coiling process, help lead around volume, in the time of on being placed in fragment, front end housing 50---as the end view of Fig. 6 D and 6F best shown in---have winding container 70, strip-wound pressure vessel 70 has provided substantially invariable groove size around the tooth portion (not shown) of fragment and end cap 50.Main part 60 on the front end housing 50 has the medial surface of winding portion of being basically perpendicular to 74, and winding portion 74 is assemblied on the tooth portion of fragment.Madial wall 76 have winding portion of being basically perpendicular to 74 and with the medial surface opposite external side face of main part 60.

End cap 50 angled surperficial 75 from winding portion 74 to lateral wall 76 medial surface angled.Angled surperficial 75 are configured to lead (not shown) with winding coil is positioned in the groove zone between main part 60 and the madial wall 76.In addition, the outside of tooth pillar 82 each comfortable pillar 82 has angled surperficial 85.Angled surperficial 85 is angled from a side of fragment tooth portion (not shown).Angled surperficial 85 leads that are configured to similarly winding coil are positioned in the yoke portion 22 and the groove zone between the magnetic pole 26 of fragment, shown in Fig. 5 C and 5D.

The lead container 70 of end cap 50 is shaped as axially and on the hoop has essentially identical transversal groove area (cross-sectional slot area).Shown in Fig. 6 D, near the angled surperficial 75 predetermined angle α the madial wall 76 ₁Shown in Fig. 6 B, the angled surperficial 85 predetermined angle α on the pillar 82 ₂Angle [alpha] ₁Be preferably and equal angle [alpha] substantially ₂In addition, these

angled surperficial

75 and 85 are preferably in the place that joins each other and seamlessly transit, and make that the transitional face between the angled surface defines and angle [alpha] equally for fragment tooth portion ₁And α ₂Identical angle.In one embodiment, angle [alpha] ₁And α ₂Be about 110 degree.

Shown in Fig. 3 A and 3B, for example, the side of tooth portion 24 is preferably front end and the bottom that is basically perpendicular to fragment 20.As mentioned above, the bottom surface 52 of front end housing 50 is positioned as the front end that is pasting fragment abreast, and the limit of winding portion 72 is aimed at the limit of fragment tooth portion.Because being shaped as, the lead container 70 of end cap 50 axially and on the hoop has essentially identical transversal groove area.Therefore, when fragment 20 was rotated in the coiling process, lead was endowed substantially invariable groove size (slot dimension).Therefore, the coiling of winding coil on fragment can be faster, tighter, more as one man carry out.In addition, when in the coiling process, lead being piled up stratification, the lead of formation winding coil can drop on the space in the lead container 70 well, and can reduce or eliminate " lead cave in (wirecollapse) " and the lead intersection of coil in winding process, and this can obtain closeer winding coil.

In order in the coiling process, to help lead around volume, in the time of on being placed in fragment, bottom cover 150---as illustrating best in the end view of Figure 10 D and 10F---has strip-wound pressure vessel 170 equally, and strip-wound pressure vessel 170 is given in substantially invariable groove size around fragment tooth portion's (not shown) and the end cap 150.Strip-wound pressure vessel 170 is similar to substantially and regards to the disclosed content of front end housing.For example, the main part 160 on the bottom cover 150 has the medial surface of winding portion of being basically perpendicular to 174, and winding portion 174 is assemblied in the tooth portion of fragment.Madial wall 176 have winding portion of being basically perpendicular to 174 and with the medial surface lateral surface in opposite directions of main part 160.End cap 150 angled surperficial 175 from winding portion 174 to lateral wall 176 inboard angled so that the location winding coil lead.In addition, the outside of tooth pillar 182 each comfortable pillar 182 has angled surperficial 185, so that the lead of location winding coil.The same with the front end housing of introducing above, angled surperficial 175 and 185 are configured to positioning lead similarly, and surface 175 and 185 limits basic angle same with respect to tooth portion separately.

F. the machinery of stator assembling

After independently fragment 20 being carried out coiling here according to some professor of the present disclosure who introduces in detail, with the fragment 20 of independent coiling be assembled into be generally annular structure to form stator.As the disclosure background parts described, some segmented stator assemblies has adopted interlock or hinge so that hold them in together on fragment.In the segmented stator assemblies of another type, that submit on April 30th, 2003, " Segmented Stator with Improved Handling andWinding Characteristics and Method of Winding the Same " by name treat accurate U.S. Patent application No.10/427,450---its integral body is incorporated into herein as a reference---disclosed a kind of segmented stator assemblies, and it adopts flexible shell mechanism so that hold them in together on fragment.On the contrary, the stator slice 20 of present embodiment is preferably to possess to be had the ridge end and

groove end

32 and 34 is arranged, the ridge end is arranged, and physics contacts with there being

groove end

32 and 34 to be positioned as each other so that form closed magnetic circuit, and do not exist between the stator slice 20 directly, fragment is to the attachment of fragment.

1. the coupling between the end cap

As disclosure background parts is described, particularly in manufacture process, typically " loose " sectionalized stator (for example those have not the stator of the fragment that is interlocked by hinge) needs thick and heavy band that fragment is kept together, and band typically is made of metal and is positioned at the fragment outer periphery.Yet in the present embodiment, disclosed end cap 50 and 150 respective end 62/64 and 162/164 are coupled, so that the stator slice 20 of independent coiling is interconnected or keeps together substantially.Can craft or automation ground the respective end 62/64 and 162/164 of disclosed end cap 50 and 150 is coupled.On the front end housing 50 that illustrates best in as Fig. 5 A-5D, an end 62 of end cap main part 60 is preferably and comprises male coupling 62, and the other end 64 is preferably and comprises female coupling 64.Male coupling is preferably the device that combines with the main part 60 of end cap 50 with female coupling 62 and 64.The contiguous end of groove end 32 that has that male coupling 62 is preferably from main part 60 with the yoke portion 22 of fragment 20 stretches out.In addition, female coupling 64 is preferably and is limited in the main part 60 and the having on the contiguous end of ridge end 32 of yoke portion 22.

For example, as illustrating best among Fig. 4, male coupling and

female coupling

62 and 64 are combined together between adjacent end cap 50, substantially fragment 20 are kept together.In the present embodiment, male coupling is fastening device (snap feature) with female coupling 62 and 64.Male coupling 62 comprises deformable forked padlock, and female coupling 64 comprises reeded breach.In the time of in being pressed into female coupling 64, the indented joint on forked padlock 62 ends is in the inside grooves of female coupling 64.The demand to metal band that fragment is kept together independently, heavy or any other special fixture in the manufacturing of institute's assembling stator or transportation has been eliminated in male coupling and

female coupling

62 and 64.

In the alternate embodiment shown in Fig. 7 A, the 7B, adjacent end cap 50 and 50 ' end 62 ' and 64 can adopt discrete C clamp 100 to be coupled.Adjacent end cap 50 and 50 ' end 62 ' and 64 can limit container 102 separately.Discrete C clamp 100---for example it can be stainless---can be assemblied in the container 102 of adjacent end cap 50 and 50 ', so that they are coupled.Container 102 can be included in the fixing rib 103 that forms on the inwall of cavity 61 of end cap 50 and 50 ' separately.Fixing rib 103 can engage C clamp 100 and hold it in suitable position.Opposite with shown in fixing rib 103 and Fig. 7 B, container 102 can be included in the holddown groove 103 ' that forms on the inwall of cavity 61 of end cap 50 and 50 ' separately.C clamp 100 ' can have the end of buckle, and this end can be assemblied in the holddown groove 103 ', so that clip 100 ' is kept in position.Groove 103 ' can extend along the height of end cap 50 ' and 50, so as to allow since pile up fragment 20 and 20 ' and the tolerance of end cap 50 and 50 ' in difference between adjacent end cap 50 and 50 ', adjust.

In another alternate embodiment shown in Fig. 8 A and the 8B, adjacent end cap 50 and 50 ' end 62 ' and 64 can adopt discrete split pin 104 to be coupled.One end 62 ' of adjacent end cap 50 ' can comprise bar 107, and bar 107 extends from the side of end cap 50 ' and has a fixing hole 108.But the other end 64 limiting holes 105 of adjacent end cap 50, split pin 104 patchholes 105.Bar 107 on end cap 50 ' can be assembled in the opening 106 on the sidewall of adjacent end cap 50.Split pin 104 can be by end cap 50 hole 105 assemblings, the end of split pin can be connected in the hole 108 on the bar 107.In this way, split pin 104 and bar 107 can keep together adjacent end cap 50 and 50 ' substantially.In addition, the opening 106 on the sidewall---bar 107 is by its insertion---can extend along the height of end cap 50 and 50 ', so that allow the adjusting between adjacent end cap 50 and 50 '.

2. alignment device

As Fig. 9 A illustrated in the 9C best, it is terminal 162 and 164 that bottom cover 150 has similarly, and it is combined together so that adjacent fragment 20 is kept together.End 162 in the present embodiment and 164 and the front end housing introduced above in similar substantially.Except the

end

162 and 164 that cooperates, bottom cover 150 is useful on the device of aiming at adjacent segment 20.Alignment device comprises the alignment slot 192 on the end of main part 160, and comprises the aligning finger piece 194 on the other end.

Be preferably: finger piece 194 extends from the end that main part 160 has female coupling 164.Finger piece 194 extends from main part 60, so that insert in the groove 192 of adjacent bottom cover 150.As illustrating best among Figure 10 C, the surface 152 that aligning finger piece 194 has the substantially flat of basic and end cap 150 is in conplane side 195.When bottom cover 150 was positioned on the fragment, 195 bottoms basic and fragment, side of finger piece 194 were positioned on the same plane.Be preferably: groove 192 is limited at the same side of the main part 160 with male coupling 162.As illustrating best among Figure 10 A, alignment slot 192 opens wide towards the end of end cap 150, so that insert the finger piece 194 of adjacent bottom cover 150.In addition, alignment slot 192 has towards the open side 193 of the flat surfaces 152 of bottom cover 150.When bottom cover 150 was positioned on the fragment, the open side 193 of groove 192 came out the bottom of fragment.

With reference to Figure 11, front end housing and

bottom cover

50 and 150 are regarded as being coupled on the adjacent segment 20 of institute's assembling stator.End cap 50 on the different fragments 20 of stator can have different tolerance values with 150.In addition, the variation of the stacks as high of different fragments 20 may reach the thickness that whenever piles up two (2) the individual thin slices that add deduct, and it may be owing to the difference in a plurality of thin slices that are used to form fragment 20 causes.When different fragment 20 is brought together when being assembled into stator, the difference on tolerance and the stacks as high can cause the unevenness on the axial A (for example substantially with the direction of institute's assembling stator central axes).For illustration purposes, adjacent fragment 20 is shown to have different stacks as high SH among Figure 11 ₁And SH ₂

Disclosed

end cap

50 and 150 has the device that the difference on tolerance and the stacks as high is overcome.When the bottom cover 150 of adjacent segment 20 was brought together, the finger piece 194 on the end cap 150 was engaged among the groove 192 on the adjacent end cap 150.The end of finger piece 194 be preferably go out as shown have chamfering like that because finger piece 194 is inserted in the groove 192.In the time of in being positioned at groove 192, is pasting by the open side of groove 192 (not sign) near planar base surface that come out, adjacent segment 20 28 location the side 195 of finger piece 194.Therefore, the near planar base surface 28 of adjacent segment 20 is on the same plane P substantially.

In addition, when

end cap

50 and 150 was combined together, male coupling can relative to each other axially adjusted on the A with

female coupling

62 and 64 and 162 and 164.As Fig. 5 A-5D or 9A-9C illustrated especially and best, the height along

end cap

50 and 150 formed male coupling and

female coupling

62 and 64 and 162 and 164 basically, and

female coupling

64 and 164 is that end is unlimited in the axial direction.Therefore, in case when being combined together, male coupling can relative to each other be regulated in the axial direction with

female coupling

62 and 64 and 162 and 164, so that adaptation stator different fragment 20 and the tolerance between

end cap

50 and 150 and difference in the stacks as high when assembling.

In addition, the surface that hero coupling on the front end housing 50 and

female coupling

62 and 64 are preferably the substantially flat that does not extend to front end housing 50 bottoms is shown in Figure 11 and Fig. 6 B-6F.In this way, under

coupling

62 and 64, form general depression shown in 63.Under the situation that adjacent segment 20 and front end housing 50 are coupled as shown in Figure 11, these depressions 63 provide the space for any difference on tolerance between the adjacent segment 20 or the stacks as high.Therefore, if fragment 20 has the stacks as high SH with adjacent segment 20 ₂Big stacks as high SH compares ₁, the coupling 62 on the

adjacent end cap

50 or 64 will not contact the top of the fragment 20 of piling up more greatly.On the contrary, depression 63 any stacks as high that exceed that will adapt on the fragment 20 of piling up more greatly.

The influence of some problem that disclosed end cap 50 and these devices in 150 can reduce to be associated with sectionalized stator.In a typical problem, on housing is crushed on stator the time, the unevenness in the sectionalized stator may have problems in manufacture process.Housing may at first be met some fragment 20, causes fragment 20 to break away from mutually and maybe may force housing improperly by being pressed on the stator.When pushing on stator during housing, alignment slot 192 on the bottom cover 150 and finger piece 194 are used for support (hold) stator when push housing on stator the time for institute's assembling stator provides the bottom of basic horizontal.Another with typical problem that sectionalized stator is associated in, can in manufacture process, accumulate the tolerance value of the different parts of stator, motor and compressor.Bottom cover 150 and the bottom surface 28 of aiming at fragment 20 with alignment slot 192 and finger piece 194 provide datum mark for tolerance.In this way, when making stator, motor and compressor, the producer can adapt to or control the accumulation of tolerance value better.

In addition, aim at the bottom cover 150 of fragment 20 and bottom surface 28 and can reduce unevenness in the sectionalized stator, this unevenness may cause problem as described below when sewing up (stitch) motor with interconnection line.Mentioned as disclosure background parts, when stator 10 was sewn, any unevenness of sectionalized stator 10 may have problems.Be placed so that when carrying out interconnection between the fragment 20 at stator, the stitching devices of automation can independently pile up on the fragment 20 and apply power at each.If a fragment 20 " exceeds " lower support datum level (for example the bottom surface of a fragment 20 is higher than the general closed planar P of other fragments 20), the power of sew application may cause fragment to move, and may produce mistake and sew up part or faulty part.In sewing up processing procedure, make fragment 20 as Figure 11 discusses, be arranged in a plane P substantially and can avoid any of these manufacturing issues substantially from this plane P or parallel with it planar support stator 10.For this reason, consistent datum level is useful between, each independent segments 20 192 and 194 that provide by alignment slot and finger piece.

G. lead is isolated

Inductor motor, BPM motor or SR motor may have alternate problem for all three types disclosure background portion branch mentions as top, and wherein, the adjacent wires of opposite electric phase produces big voltage difference between adjacent wires.Make big voltage and current when given instant passes through the magnetizing clamp of stator when motor is used as, this alternate problem may worsen.In addition, the operation of driver (not shown) is with the excitation of the winding coil of control stator 10.In one embodiment, pulse-width modulation (PWM) driver can be used for disclosed stator module 10.Yet, also can adopt other conventional arts that the excitation of winding coil is controlled.As mentioned above, when pwm driver was used for drive motor, alternate problem will be increased the weight of, this be because from the waveform of pwm driver may the forward position of waveform and back along on have the high voltage spike, produce needs to separating mutually.

In the present embodiment, be preferably the traditional insulation of employing between contiguous winding coil 92.Yet as mentioned above, solution of the prior art has not only adopted insulation between contiguous winding coil, also adopted extra insulation between contiguous interconnecting lead---for example

Or

Sheet and pipe are so that reduce the influence of alternate problem potentially.It's a pity that extra insulation has increased the cost and the time of making motor.Such as previously mentioned, solution of the prior art may be simply at stator arranged outside thread guide path so that out of phase winding coil is interconnected.In addition, prior art solutions may only adopt distance pole so that make the lead bending on end cap, or adopts the ring with different hooks that the path of lead is set between coil.In the prior art such solution allow out of phase lead be close to by (pass next to each other) or or even the contact, this may produce undesirable alternate problem.

1. the route on the front end housing is provided with device

In the present embodiment, front end housing 50 comprises a plurality of lead spacer assemblys that are used for interconnecting lead is carried out route setting and separation.Unlike the prior art, lead spacer assembly purpose is: contact out of phase other leads or be positioned as very approaching out of phase other leads by preventing any interconnecting lead of phasing of giving, substantially eliminate or reduce alternate problem between the adjacent interconnection lead, and do not adopt extra insulation.In an example, the lead spacer assembly produces the air gap that minimum is 0.030 inch (diameter of wire) between adjacent interconnecting lead.In addition, the lead spacer assembly on the disclosed end cap 50 is designed, to be used for the stitching of automation.In the present embodiment of front end housing 50, shown in Fig. 5 A-6F, side path was provided with that device or hook 110, outer side path are provided with device or hook 120 and another side path of being positioned on the disclosed end cap 50 is provided with device or ledge 130 in the lead spacer assembly comprised.

A. inboard hook

As illustrating best among Fig. 5 B, for example, inboard hook 110 is positioned on the madial wall 76 of front end housing 50, and extends from a side of madial wall 74.Inboard hook 110 has high flange 112, low flange 114 and padlock (catch) 116.High flange 112 is provided with thread guide path with distance stator slice 20 larger distances, and low flange 114 is provided with thread guide path with distance stator slice 20 nearer distances.Therefore, the high flange of inboard hook 110 and

low flange

112 and 114 pairs of interconnecting leads---path of this lead is set to a part from stator to another part---are separated.Padlock 116 is positioned at interconnecting lead on

flange

112 and 114, and can be used for making the interconnecting lead bending.

B. hook outside

Shown in Fig. 5 C, for example, outside hook 120 is positioned at place contiguous with an IDC container 68+ on the main part 60 of front end housing 50.Outside hook 120 extends beyond main part 60, and has high flange 122 and low flange 124.High flange 122 is provided with the interconnecting lead path with distance stator slice 20 larger distances, and low flange 124 is provided with the interconnecting lead path with distance stator slice 20 nearer distances.Therefore, high flange on the outside hook 120 and low flange 122 and 124 pairs of interconnecting leads---it is set to a part from stator to another part---are separated.High flange 122 is preferably and limits breach (notch) 126, and breach 126 is used to position the wire at high flange 122.As mentioned above, be preferably under the situation that in the mold process, does not need layback (side pull) end cap 50 is carried out injection mould, make the surface of end cap 50 to form by two moulds (die) that drawn back.In order to be formed on the nearby low flange 124 of process of main part 60, the place of contiguous low flange 124 limits window 125 (shown in Fig. 6 A and 6B) on main part 60.Window 125 is communicated with the hole 61 of main body, and allows under the situation that does not adopt layback end cap 50 to be carried out mold, and this will reduce and make relevant time and cost.

C. ledge

As illustrating best among Fig. 5 A, for example, ledge 130 is positioned on the lateral surface of madial wall 76.In the present embodiment, comparing on madial wall 76 and the existing end cap is higher, and purpose is to prevent that interconnecting lead from disturbing the rotor rotated (not shown).In addition, high madial wall 76 helps to guide interconnecting lead, makes them can not contact with each other.Ledge 130 comprises high flange 132 and low flange 134, is used to separate be set to through the interconnecting lead of madial wall 76 from a part of stator to another part.High flange 132 is provided with the interconnecting lead path with distance stator slice 20 larger distances, and low flange 134 is provided with the interconnecting lead path with distance stator slice 20 nearer distances.High flange 132 be preferably be positioned at inboard hook 110 on madial wall 76 sides near, low flange 134 be preferably the side in opposite directions that is positioned at madial wall 76 near.In each phase of coiling motor, interconnecting lead can be laid on the ledge 130 on the madial wall 76, and this can prevent that interconnecting lead from disturbing rotor when lead is tightened up.

2. illustrative sew application

Under the situation that the fragment 20 with independent coiling is combined together, institute's assembling stator can be advanced in manufacture process, and does not need housing or metal band that fragment 20 is kept together.As shown in Figure 1, traditional plastic cable binding 12 can be placed on stator module 10 around so that further stopping stator module in the manufacturing step temporarily.

In further manufacturing step, winding coils different in the fragment is interconnected, arrange mutually to form desirable motor.In the prior art, be used for multiple technologies that the winding coil to sectionalized stator connects be known also be what to have adopted.Yet, in the present embodiment, sewing process is used to be electrically connected independently winding coil, form desirable facies model.Sewing process can or carry out automatically by technology craft well known in the prior art.Be preferably: the sewing process that is used for disclosed stator 10 is undertaken by the automation stitching devices, is used for locating interconnecting lead on stator, so that winding coil is interconnected.The details of automation stitching devices and suturing skill were submitted on July 11st, 2002, be entitled as " Improved Interconnection Method for SegmentedStator Electric Machines " treat accurate U.S. Patent application No.10/193, open in 515, this application integral body is incorporated into herein as a reference.

In brief, the automation stitching devices can be similar to traditional spooling equipment that stator slice is independently wound the line, because the mechanism that interconnecting lead is connected up is with to be used for around fragment the mechanism around the volume lead similar substantially.The automation stitching devices is preferably computer numerical control (CNC) machine.For example, the automation stitching devices can have feed conductor conduit, settle the static of lead or movably main shaft and the rotation of support stator or static support.Can move pin and/or stator with programmable mode, so that on stator, from the end cap to the end cap, settle interconnecting lead.For example, the stitching devices of automation can be moved by controller and electronic device, and the stator maintenance is static.On the other hand, the stitching devices of automation can be for static, and stator is by controller and electronic device location.Perhaps, the stitching devices of automation and stator all can be moved by controller and electronic device.

In order to prevent alternate problem, the inboard hook 110 on the front end housing 50, outside hook 120 and ledge 130 are used in automation and sew up and handle, and the not homophase of motor is connected.The sew application of automation can adopt conduit, and---it has the diameter of 4mm---places interconnecting lead between different end cap 50.Because conduit moves with respect to the parts of stator 10, conduit may need additional space for the internal clearance, therefore, is preferably, and the device of front end housing 50 provides the gap of 4mm at least for the process of this conduit.

In Figure 12 A to 12D, show to principle the preferred steps of on disclosed stator module 10, carrying out sew application.Shown in Figure 12 A, the current example of disclosed stator module 10 has nine stator slice, and they are serial number in a clockwise direction.Each fragment 20 usefulness of stator 10 represent that the label of the phase of winding coil on the fragment 20 discerns.For clarity sake, Figure 12 A to 12D does not illustrate winding coil.Have in the present embodiment under the situation of nine fragments 20, every phase winding A, B, C comprise the winding coil on every side around three stator slice, 20 tooth portions, and it is alternately placed around stator 10.Number of fragments only is illustrative with mutually quantity among Figure 12 A to 12D, under the situation that does not break away from disclosure professor, can adopt other layout.

A.C interconnects mutually

When beginning to make fragment 20 to form annular stator 10 shown in Figure 12 A, the winding coil (not shown) of phase A, B, C is not electrically connected each other.First stitching step that the winding coil that is used for illustrative stator module 10 is connected relates to opposite direction (for example being counter clockwise direction in this example) connection C phase winding coil.In the accompanying drawing below, any stitching interconnecting lead between step is not shown for clarity sake.In addition, for clarity sake, do not illustrate to be used in yet and sew up any unnecessary conductor part in the processing, that finally be removed.In first stitching step, portion C phase interconnecting lead 94C is positioned by the Container ID C+ on the end cap of fragment S-3.As mentioned above, the leading portion of the winding coil 92 of S-3 is set up the path by Container ID C+, therefore, C phase interconnecting lead can---it will be placed at the assembling stage of back among the Container ID C+---be electrically connected by the IDC (not shown) with the lead that is used for this winding coil.

By the Container ID C+ on the S-3, with counterclockwise, 124 couples of interconnecting lead 94C of the low outboard flanges on S-3 connect up, and through the lateral wall on the S-2, arrive the low medial flange 114 on the S-1, arrive the low medial flange 114 on the S-9 again.On S-9, around the limit 142 that connects the benchmark wall, interconnecting lead 94C is connected up, and make it to locate by the seam among the Container ID C+ with C phase.Then, lead 94C is routed to low outboard flanges 124 on the S-9,, arrive the low medial flange 114 on the S-7, arrive the low medial flange 114 on the S-6 through the lateral wall on the S-8.On the S-6 that has the C phase equally, around the limit 142 that connects the benchmark wall, lead 94C is connected up, and make it to locate by the seam among the Container ID C+.Therefore, C phase interconnecting lead 94C interconnects to whole Container ID C+ of C phase fragment S-3, S-9, S-6.Finally, C phase interconnecting lead 94C is at the external latasuture of the Container ID C+ of S-3 and S-6 on the outside of end cap 50 and repairs, and sewing process proceeds to next step.

B.B interconnects mutually

Shown in Figure 12 B, ensuing stitching step relates to opposite direction (for example in this example with counterclockwise) B is connected mutually.In this stitching step, part B phase interconnecting lead 94B is positioned by the Container ID C+ on the end cap of fragment S-2.So lead 94B through the madial wall on the S-1, arrives the high medial flange 112 on the S-9 counterclockwise to be routed to the low outboard flanges 124 on the S-2, arrives the high medial flange 112 on the S-8 again.On S-8, around the limit 142 that connects the benchmark wall, lead 94B is connected up, and make it to locate by the seam among the Container ID C+ with B phase.Then,,, arrive the high medial flange 112 on the S-6, arrive the low medial flange 114 on the S-5 through the lateral wall on the S-7 with the low outboard flanges 124 of this harness wiring to the S-8.On the S-5 that has the B phase equally, around the limit 142 that connects the benchmark wall, lead 94B is connected up, and make it to locate by Container ID C+.Therefore, B phase interconnecting lead 94B interconnects to whole Container ID C+ of B phase fragment S-2, S-8, S-5.The interconnecting lead 94B finally external latasuture place of the Container ID C+ on S-2 and S-5 stops.

C.A interconnects mutually

Shown in Figure 12 C, ensuing treatment step relates to opposite direction (for example in this example with counterclockwise) A is connected mutually.In this stitching step, part A phase interconnecting lead 94A is positioned by the Container ID C+ on the end cap of fragment S-7.By Container ID C+, interconnecting lead 94A through the madial wall on the S-6, is arrived the high medial flange 112 on the S-5 counterclockwise to connect up, and arrives the high medial flange 112 on the S-4.On S-4, around the limit 142 that connects the benchmark wall, lead 94A is connected up, and make it to locate by the seam among the Container ID C+ with A phase.By Container ID C+, with the low outboard flanges 124 of this harness wiring to the S-4,, arrive the high medial flange 112 on the S-2 through the madial wall on the S-3, arrive the high medial flange 112 on the S-1.On the S-1 that has the A phase equally, around the limit 142 that connects the benchmark wall, lead 94A is connected up, and make it to locate by the seam on the Container ID C+.Therefore, A phase interconnecting lead 94A interconnects to whole Container ID C+ of A phase fragment S-1, S-4, S-7.Interconnecting lead 94A finally stops at the external latasuture place of the Container ID C+ of S-1 and S-7.

D. common interconnect

Shown in Figure 12 D, neutrality or common interconnect lead 96 connect with the forward direction direction.In this stitching step, part common interconnect lead 96 is positioned among the common container IDC-on the end cap of the fragment that is designated S-1.As mentioned above, the lead rear of the winding coil of fragment S-1 is also by Container ID C-location, therefore, the lead of interconnecting lead 96 and winding coil can---it will be placed among the Container ID C-in the assembling stage of back---be electrically connected by the IDC (not shown).By Container ID C-, in a clockwise direction, around the limit 142 of the connection benchmark wall on the fragment S-2, lead 96 is connected up, make it to locate among the Container ID C-on S-2, arrive the high outboard flanges 122 on the S-3.Then, on each of fragment S-3 to S-9, repeat identical wiring step for common interconnect lead 96.Therefore, the neutral Container ID C-of all of 96 couples of fragment S-1 to S-9 of common interconnect lead interconnects.The external latasuture place of interconnecting lead 96 final neutral Container ID C-on fragment S-1 and S-9 stops.

The preferred suture pattern of---it is connected to desirable layout mutually with winding coil---only is exemplary in Figure 12 A-12D, for phase and common interconnect lead.Do not breaking away under the situation that the disclosure teaches, can adopt other suture pattern.In an example, one or more above-mentioned suture way for phase can be realized with the rightabout around stator 10.For example, another suture pattern can relate to: with the C phase winding coil among direction of advance (for example clockwise) the first connection layout 12A, with the B phase winding coil among direction of retreat (for example counterclockwise) the second connection layout 12B, with the A phase winding coil among direction of advance the 3rd connection layout 12C, last neutral end with all winding coils among the direction of retreat connection layout 12D.In addition, adopt the disclosure and top disclosed illustrative suture pattern, those skilled in the art can develop and be used for comparing with illustrative embodiment this pattern with more or less fragment and/or more or less stator mutually.

The arrangement of e.IDC and other installation step

After sewing up interconnecting lead as described above, be placed on IDC among IDC Container ID C+, the IDC-and be pressed onto by Container ID C+, IDC-the location lead on.As is known in the art, IDC is electrically connected a plurality of leads that are placed in the IDC container, and is provided for being connected to the terminal coupling of the terminal ends of phase conductor lead-in wire.Be preferably: the insulation distance connector (IDC) that Tyco is made is used for disclosed stator module 10 and end cap 50.The redundance of interconnecting lead and the distance pole 148 of stator 10 lateral surfaces are repaired, and stator 10 can be placed in the housing.

Last installation step relates to power supply lead wire is connected to stator module.For three-phase machine, for example, 1/4 inch IDC can be inserted among three IDC Container ID C+ on the front end housing 50, just as on the end cap of fragment S-1, S-2, S-3 those.So the terminal connector of three power supply lead wire ends can be connected to these 1/4 inch IDC.At last, power supply lead wire can adopt poke-in to prick circle (poke-in tie wrap) and be attached to stator module, and poke-in pricks circle and has end, and this end is inserted in the hole (66 among Figure 12 D) on the front end housing 50.

H. fan-shaped stator

Except top disclosed feature, disclosed sectionalized stator 10 comprises additional features, the profile, oil cooling that they relate to stator 10 but with discharging, material efficiency and stator 10 consistent installation the in housing.Discuss like that at the background portion branch as the disclosure, enclosed motor used in the compressor has oil pump bottom compressor, be also referred to as oil storage tank.Typically, oil is pumped by the hollow parts in the armature spindle, through motor, arrives base bearing.After lubricated base bearing, oil is released in front end or " top " of motor, so that be expelled back into oil storage tank.

Because winding coil 92 and rotor rotated, hindered basically and returned the inner chamber 11 of oil by stator 10 and return.Therefore, the lateral profile of stator 10 can play an important role aspect the oil storage tank allowing oil how to turn back to from the front end of motor.For example, if there are not enough oil extraction areas in the motor, oil may be retained at the top of motor, produces higher oil circulation in refrigerating system, may make the deficient oil of oil pump, and may cause the performance of compressor not good owing to the compression of oil in the system rather than air.On the other hand, if stator has too big oil extraction area, stator may be by comparing less back iron and constitute with desirable, and this may produce higher magnetic flux in stator core saturated and reduce the performance of motor.

With reference to Figure 13, show the flux density path reasoningly in illustrative embodiment Central Plains according to some professor's of the disclosure disclosed sectionalized stator 10.In this example, disclosed stator 10 comprises nine fragments 20.Fragment 20 is electrically connected together, becomes the annular-shape of stator 10, and is accommodated among the housing S, and housing S illustrates with outline line in Figure 13.Fragment 20 has around twisting in its tooth portion 24 also uses for example rectangular winding coil (not shown) that waits insulating material to separate of plastics.The magnetic pole 26 of fragment 20 defines inner chamber 11, and rotor 14 is placed in the inner chamber 11, so that with respect to stator 10 rotations.In the present embodiment, rotor 14 comprises a plurality of built-in permanent magnets 16, and can with the U.S. Patent application No.10/229 that submitted on August 28th, 2002, be entitled as " Permanent Magnet Machine ", disclosed rotor is similar in 506, this application integral body is incorporated into herein as a reference.

In the present embodiment, each fragment 20 of stator module 10 comprises the feature that is used for oil extraction.Flat portions or section (cutaways) form contrast with adopting in the stator outside of being done of typical case in the prior art is that each fragment 20 defines the scalloped profile 36 that forms on fragment outer side edges 30.Stator 10 that therefore, formed by a plurality of fragments, disclosed has around a plurality of this scalloped profile 36 of stator 10 outside symmetric arrangement.The scalloped profile 36 of the fragment 20 of stator 10 provides symmetrical oil extraction area around the circumference of housing S and stator 10, so that make oil arrange motor.The oil extraction area of symmetry also can provide additional advantages such as uniform motor cooling.

With reference to Figure 14,, show an embodiment of the fragment 20 of disclosed stator module with plane graph with respect to the circumference of housing S.The circumference of housing S is with big radius R ₁Limit the less concentric radius R of magnetic pole 26 usefulness of fragment 20 ₂Limit.There is width W in the tooth portion 24 of fragment 20.Be preferably: with the 3rd radius R ₃In the outer side edges 30 of fragment 20, limit scalloped profile 36.Fragment 20 is preferably: except that the ridge end being arranged and having groove end 32 and 34, about center line C symmetry.

1. contact area

Something of being concerned about when the size of contact area is the scalloped profile 36 of the open fragment 20 of designing institute between the circumference of stator 10 and housing S.In Figure 13, for example, in the outer side edges 30 of a plurality of fragments 20 and stator 10 is remained between the housing S of appropriate location and require minimum at least contact area.Typically, for stator 10 is kept in position, the contact area that accounts for the about 18-25% of the total circumference of housing S is desirable.As shown in figure 14, the outer side edges 30 of disclosed fragment 20 is with contact area A ₁+ A ₂Circumferential contact with housing S.Therefore, be preferably: on fragment 20, form scalloped profile 36, make contact area A between outer side edges 30 and the housing S circumference ₁+ A ₂Be approximately the 18-25% of fragment 20 whole angular zones.By this method, can have desirable contact area between outer side edges 30 and the housing S with the stator 10 among Figure 13 of a plurality of fragments 20 formation, and can be to the radius R of scalloped profile 36 shown in Figure 14 ₃Select the oil extraction area A that profile 36 is provided ₃Maximization.

2. housing distortion

Get back to Figure 13, another part thing of being considered when the potential distortion of the housing S that stator 10 causes is the scalloped profile 36 that designs on the fragment 20.Under the situation about the circumference symmetry of stator 10, the scalloped profile 36 of fragment 20 can provide first-class cooperation the between stator 10 and the housing S.In addition, if when potential distortion takes place, can make housing S homogeneous deformation about the scalloped profile 36 of the circumference symmetry of stator 10.As described in the background parts, prior art adopts flat around the stator outer side edges as the disclosure.Unlike the prior art, the scalloped profile 36 of symmetric arrangement has reduced to disturb smooth length housing S, stator 10 on the stator 10, and this can reduce the distortion of undesirable housing S.As illustrating best among Figure 14, the scalloped profile 36 on the fragment 20 is preferably at the two ends of profile 36 all has unbroken sweeping radius (sweepingradii) R with the place that the outer side edges 30 that contacts housing S is joined ₄This unbroken sweeping radius R ₄Substantially remove the sharp edges on the outer side edges 30 of fragment 20, and can reduce the distortion of housing S potentially.

3. flux density

In the example alignment between rotor 14 shown in Figure 13 and stator 10, fragment S-2, S-5 and S-8 have intensive flux path.On stator 10, keep enough back iron amount to avoid saturated another consideration when being the scalloped profile 36 of design stator 10 of flux in the fragment 20.As mentioned above, prior art solutions can reduce the stator back iron amount that desirable motor performance needs.The present embodiment of scalloped profile 36 has not only provided bigger oil extraction area, has significantly reduced housing distortion, and disclosed scalloped profile 36 remains on preferred level with the back iron in the fragment 20 substantially.

In Figure 14, fragment 20 is shown to have the center line C that symmetry is divided fragment 20.The first line P ₁Be illustrated as center line C, and be basically perpendicular to center line C from the inside lock 31 of tooth portion 24 to fragment 20.The second line P ₂Be illustrated as from inside lock 31 to fragment 20 limit 30, and be basically parallel to center line C.Since flux path between the end 32 of tooth portion 24 and fragment 20 around the corner 31 process, flux path in Figure 14 by principle for passing first line and the second line P ₁With P ₂The first line P ₁Define half cross-sectional area of representing with the width W of tooth portion 20.

For fear of saturation problem, the second line P ₂Be preferably the cross-sectional area that qualification equates with the first line cross-sectional area that P1 limits at least.Flux path also is illustrated as passing free-throw line U and the U ' that extends to center line C and scalloped profile 36 from the corner 31 of fragment 20 in Figure 14.For fear of saturation problem, these free-throw lines U and U ' be preferably qualification at least with the first line P ₁The cross-sectional area that equates of the cross-sectional area that limits.By this method, on fragment 20, form scalloped profile 36, make the part of fragment 20 between corner 31 and scalloped profile 36 enough back iron amounts be arranged for passing through the tooth portion 24 and the end 32 of

fragment

20 and 34 flux.

I. the outage on the front end housing

Once again with reference to Fig. 6 A to 6F, the front end housing 50 in the present embodiment also comprise be used for oil cooling but with the discharging feature.As illustrating best among Fig. 6 B, the main part 60 on the front end housing 50 defines the cavity 61 that is used for the mold purpose, and this is because end cap 50 usefulness plastics injection moulds form.Main part 60 also defines the installing hole 66 that is used for cable binding (not shown).On the front end housing on the stator module of finishing 50, not every installing hole 66 has all adhered to the cable binding.For example, in the typical three-phase motor, have only three cable bindings to be coupling among the installing hole 66.Therefore, a plurality of unlimited installing holes 66 will make the cavity 61 of end cap 50 come out.Because the motor in the hermetic compressor application scenario is that when the cable binding did not exist, oil can enter the cavity 61 of end cap 50 by installing hole 66 in the environment that oil is arranged.In addition, oil can be through other holes on the end cap 50, for example mating holes 146 that illustrates best among Fig. 6 A and the 6B or window 125.Therefore, oil can be assembled in the cavity on the end cap 50 61, and can deposit on the stator front end, and this does not wish to see.

In order to prevent the gathering of oil, disclosed end cap 50 comprises outage 67 along the base of end cap 50.Can discharge outside the bottom of end cap 50 by outage 67 from the oil that cavity 61 is injected in exposure installing hole 66 or other holes of end cap 50 tops.Outage 67 has been eliminated the alluvial of any oil of stator slice 20 front ends and end cap 50 tops substantially.By making flow through end cap 50 rather than flow down from the inner chamber of stator 10 of some oil, outage 67 can reduce the oil mass by the compressor assembly circulation.When oil passed through the inner chamber of stator 10, rotatablely moving of rotor can force oil to get back to the top of compressor, and there, oil is taken up once more by air-flow and circulates by refrigerating system.Although outage 67 provides the small path that oil is turned back to the compressor oil storage tank, have been found that the outage 67 on the end cap 50 of stator module 10 can prevent that about 1/2 ounce oil from not providing alluvial on end cap 50 under outage 67 situations.In addition, believe that outage 67 can help the cooling of the winding coil on the fragment by helping oil extraction.In addition, the outage 67 on end cap 50 bases also advantageously plays the effect of the release areas (relief area) of the interlocking protrusion (element 37 among Fig. 3 A) on the fragment.

As here and claims used, to the relative position that only is used to be clearly shown that disclosed end cap and stator module upper-part of quoting of words such as top, the end, upper and lower, inboard, the outside, front end, bottom.The word of these relative positions is the orientation of limiter assembly not, does not also limit whole orientation and the operation in motor of disclosed end cap and stator.

To the above-mentioned explanation of preferred embodiment and other embodiment is not in order to limit the scope and the application of the inventive concept that the applicant proposes.As carrying out disclosed exchange to comprising inventive concept here, it is patented that the applicant wishes to obtain the institute that claims propose.Therefore, claims are included in all changes and the modification in claims or its equivalent scope.

Claims

1. the end cap of the fragment of an electromagnetic machine that is used for having lead, this fragment has: the magnetic pole in the tooth portion that has the yoke portion of outboard end, extends from described yoke portion, the described tooth portion, described end cap is characterised in that and comprises:

The first inboard pillar, it extends from described end cap, and be positioned at described tooth portion a side near;

The second inboard pillar, it extends from described end cap, and be positioned at described tooth portion opposite side near; And

Outer leg, it extends from described end cap, and be positioned at described yoke portion described outboard end near.

2. according to the end cap of claim 1, wherein, described first and second inboard pillar is positioned on the described side of described tooth portion with interference engagement.

3. according to the end cap of claim 2, wherein, described first and second inboard pillar has the limit that is positioned as the described side of pasting described tooth portion with described interference engagement separately.

4. according to the end cap of claim 2, wherein, described first and second inboard pillar has the face that is positioned as the medial surface that is pasting described magnetic pole separately.

5. according to the end cap of claim 1, wherein, described outer leg is arranged in the groove on the described outboard end that is limited to described yoke portion.

6. according to the end cap of claim 1, wherein, described end cap has the surface adjacent with described fragment, this surface define with described pillar in the recessed zone of adjacent at least one, the female zone is used to hold when described end cap is positioned on the described fragment material part that may scrape from a described pillar.

7. according to the end cap of claim 1, wherein, described first and second inboard pillar has end separately, and each in the described end is joined substantially with the described end that is positioned at the described inboard pillar that the other end on the described fragment forward surface covers.

8. according to the end cap of claim 7, wherein, described first and second medial branch base for post on the described end cap in opposite directions originally covers the outer surface of the described magnetic pole of described fragment.

9. according to the end cap of claim 1, wherein, described end cap comprises:

Main part, it is positioned near the described yoke portion, and has the medial surface that is basically perpendicular to described tooth portion,

Madial wall, it is positioned near the described magnetic pole and has lateral surface, and the basic described medial surface with described main part of described lateral surface is in opposite directions;

Winding portion, it is near described tooth portion and be connected between described main part and the described madial wall, described winding portion has angled surface, described lateral surface angulation and be configured to position the wire the zone described main part and described madial wall of described angled surface from described winding portion to described madial wall.

10. according to the end cap of claim 9, wherein, described first and second inboard pillar has angled surface separately on the lateral surface of described pillar, described angled surface is from the described side angulation of described tooth portion and the zone between described magnetic pole and described yoke portion of being configured to position the wire.

11. according to the end cap of claim 10, wherein, the described angled surface of described madial wall and the described angled surface of described inboard pillar limit essentially identical angle with respect to described tooth portion.

12., wherein, carry out the transition to the described angled surface of described inboard pillar according to the end cap of claim 11 the described angled surface smoothing of described madial wall.

13. a stator that is used to have the electromagnetic machine of lead, this stator is characterised in that and comprises:

The fragment of described stator, it has yoke portion, tooth portion and magnetic pole, and described yoke portion has outboard end, and described tooth portion extends from described yoke portion, and described magnetic pole is in described tooth portion;

End cap, it is positioned near the described fragment and comprises:

14. an electromagnetic machine is characterized in that comprising:

Stator with fragment, described fragment has yoke portion, tooth portion and magnetic pole, and described yoke portion has outboard end, and described tooth portion extends from described yoke portion, and described magnetic pole is in described tooth portion;

Be positioned at the end cap on the described fragment, described end cap comprises:

Device on the described end cap, it is used for engaging with interference engagement the side of described tooth portion; And

Device on the described end cap, it is used to engage the described outboard end of described yoke portion.

15. according to the stator of claim 14, it also comprises such device: this device covers the outer surface of described magnetic pole substantially.

16. according to the stator of claim 14, wherein:

Described fragment comprises the surface, and described end cap is positioned on this surface,

Described end cap limits the groove zone, and described groove zone is used for around the described side of described tooth portion and surface around the volume lead, and

Described end cap also comprises such device: this device is used for providing the zone of the described groove with similar substantially cross-sectional area in surperficial and described tooth portion of described tooth portion side on described end cap.

17. an end cap that is used for the fragment of electromagnetic machine, this electromagnetic machine has lead, and described fragment has yoke portion, tooth portion and magnetic pole, described yoke portion has outboard end, described tooth portion extends from described yoke portion, and described magnetic pole is in described tooth portion, and described end cap is characterised in that and comprises:

Main part, its be positioned at described yoke portion near, and have the medial surface that is basically perpendicular to described tooth portion;

Madial wall, it is positioned near the of described magnetic pole and has lateral surface, and the basic described medial surface with described main part of described lateral surface is in opposite directions;

18. according to the end cap of claim 17, wherein, described first and second inboard pillar has the limit of orientating the described side of pasting described tooth portion with interference engagement as separately.

19. end cap according to claim 17, wherein, described first and second inboard pillar has angled surface separately on the lateral surface of described pillar, described angled surface is angled and the zone between described magnetic pole and described yoke portion of being configured to position the wire from the side of described tooth portion.

20. according to the end cap of claim 19, wherein, the described angled surface of described madial wall and the described angled surface of described inboard pillar define essentially identical angle with respect to described tooth portion.

21. according to the end cap of claim 20, wherein, the described angled surface smoothing of described madial wall carries out the transition to the described angled surface of described inboard pillar.

22. according to the end cap of claim 17, wherein, described first and second inboard pillar has end separately, the described end of described inboard pillar of each in the described end and lip-deep another end cap in opposite directions that is positioned at described fragment joins substantially.

23. a stator that is used to have the electromagnetic machine of lead is characterized in that comprising:

The fragment of described stator, described fragment has yoke portion, tooth portion and magnetic pole, and described yoke portion has outboard end, and described tooth portion extends from described yoke portion, and described magnetic pole is positioned in the described tooth portion;

Be positioned near the end cap of described fragment, it comprises:

Main part, it is positioned near the described yoke portion and has the medial surface that is basically perpendicular to described tooth portion;

Madial wall, it is positioned near the described magnetic pole and has lateral surface, and the described medial surface of described lateral surface and described main part is substantially in opposite directions;

Winding portion, it is near described tooth portion and be connected between described main part and the described madial wall, described winding portion has angled surface, angled and the zone described main part and described madial wall of being configured to position the wire of the described lateral surface of described angled surface from described winding portion to described madial wall.

24. the end cap of an electromagnetic machine, this electromagnetic machine has stator, this stator has a plurality of adjacent fragments, described end cap is characterised in that and comprises main part, described main part is configured to be used for being positioned at one yoke portion of described adjacent segment, described main part has first and second end, and described first and second end is configured to be coupled to end that abutting end covers so that described adjacent segment is kept together substantially.

25. according to the end cap of claim 24, wherein, described end cap comprises second coupling on coupling of first on described first end and described second end.

26. according to the end cap of claim 25, wherein, the described first coupling adjustable ground is coupled with described second of adjacent identical end caps and is coupled, so that regulate the aligning between the described adjacent end cap.

27. according to the end cap of claim 25, wherein, described first coupling comprises male element, described second coupling comprises female element.

28. according to the end cap of claim 27, wherein, described male element comprises forked padlock, described forked padlock is from the described first terminal described female coupling of extending, being used for being fastened in adjacent identical end caps of described main part.

29. according to the end cap of claim 27, wherein, described female element comprises the snap groove that is limited on described second end.

30. according to the end cap of claim 27, wherein, described male element is configured to be used to be positioned near having the groove end of described fragment, and wherein, described female element is configured to be used to be positioned near having the ridge end of described fragment.

31. end cap according to claim 24, wherein, the described terminal groove that limits of described end cap, described groove is configured to be used for engage by clip, described clip has first and second part, described first is used for being assemblied within of described groove, and described second portion is used for being assemblied within of described groove of adjacent identical end caps.

32. according to the end cap of claim 24, wherein, described fragment has the surface, described end cap can be positioned on the described surface, and wherein, described end cap also comprises:

Be limited to the groove on described first end, its described surface that has described fragment is exposed to outer openend, and

Finger piece, it is from described second terminal the extension, and the described surface that has with described fragment can be positioned conplane side substantially,

Wherein, described finger piece is assemblied in the described groove on the adjacent identical end caps, and the described side of described finger piece is positioned as the described surface of pasting adjacent described fragment, make described adjacent segment described surface substantially at grade.

33. an electromagnetic machine, this machine is characterised in that and comprises:

Stator, it has a plurality of adjacent segment;

A plurality of end caps, each end cap have main part and have first and second end, and described main part is positioned on one the yoke portion in the described adjacent segment,

Be used to be coupled described first and second end of adjacent described end cap so that the device that described adjacent segment is kept together substantially.

34. an end cap that is used to have the electromagnetic machine of stator, described stator has a plurality of adjacent segment, and each fragment has segment surfaces, and described end cap is characterised in that and comprises:

Main body, it has body surfaces, and described body surfaces is configured to be used for pasting one described segment surfaces location of described fragment, makes that described body surfaces and described segment surfaces are in the same plane substantially,

Wherein, the part of described body surfaces can be positioned as the described surface of pasting adjacent described fragment, so that on the direction that is parallel to described stator center axle substantially, aim at adjacent segment, make that the described surface of described adjacent segment is in the same plane substantially.

35. according to the end cap of claim 34, wherein, the described part of described body surfaces comprises the first terminal finger piece that extends from described main body.

36. end cap according to claim 35, wherein, main body comprises the groove on second end that is limited to described main body, described groove has open side, outside described open side was exposed to the described surface of described fragment, described groove was configured to be used to hold the described finger piece of described end cap adjacent on the adjacent described fragment.

37. according to the end cap of claim 35, wherein, described finger piece can be positioned near having the ridge end of described fragment, and wherein, described groove can be positioned near having the groove end of described fragment.

38. according to the end cap of claim 35, wherein, described main body also comprises:

Female coupling near described first end of the described main body the described finger piece; And

Hero coupling near described second end of the described main body the described groove,

Wherein, the described male coupling that described abutting end covers is fitted to each other with described female coupling, and described adjacent segment is kept together substantially.

39. according to the end cap of claim 38, wherein, described male element comprises from the described first terminal forked padlock that extends and the described female element in adjacent identical end caps of being configured to be used for being fastened.

40. according to the end cap of claim 38, wherein, described female element comprises the snap groove that is limited on described second end.

41. a stator that is used for electromagnetic machine is characterized in that comprising:

A plurality of adjacent segment of described stator, each fragment has segment surfaces; And a plurality of end caps, each end cap comprises:

Main body, it has and is positioned as the body surfaces of pasting one described segment surfaces in the described fragment, makes that described body surfaces and described segment surfaces are in the same plane substantially,

Wherein, the part of described body surfaces is positioned as the described surface of pasting adjacent described fragment, so that on the direction of the central shaft that is parallel to described stator substantially, aim at adjacent segment, make that the described surface of described adjacent segment is in the same plane substantially.

42. an electromagnetic machine is characterized in that comprising:

Stator with a plurality of adjacent segment, each fragment has segment surfaces;

A plurality of end caps, each end cap are positioned as and are pasting one described segment surfaces in the described adjacent segment and having first and second end; And

Be positioned at the device on the described end cap, it is used for aiming at adjacent described end cap on the direction of the central shaft that is parallel to described stator substantially described first and second end makes the described segment surfaces of described adjacent segment be positioned at same plane substantially.

43. the end cap of an electromagnetic machine, this machine has stator, this stator has a plurality of adjacent segment, described end cap is characterised in that of being configured to be used for to be positioned at described adjacent segment goes up and has and comprises first and second terminal main part, described first and second end is configured to be used to be coupled to the end of adjacent end cap, so that substantially described adjacent segment is kept together, described first end comprises deformable male element, described second end comprises female element, described deformable male element be configured to be used for to be fastened one described female element of described adjacent end cap.